Fuel System Maintenance - Toro 23740 Operator's Manual

4. Examine the plug for wear and damage (Figure 26).
Important: Replace a cracked, fouled, or dirty
spark plug. Do not clean the electrodes, because
grit entering the cylinder can damage the engine.
1 2
1. Ground electrode
2. Center electrode
5. Check the spark-plug gap with a wire gauge. If
necessary, adjust the gap to 0.76 mm (0.030 inch) by
carefully bending the ground electrode (Figure 26).
6. Install the spark plug by threading it into the cylinder
head and torquing the plug to 20 N-m (14 lb-ft).
7. Connect the spark-plug wire to the terminal of the
spark plug.

Fuel System Maintenance

Draining the Fuel System
1. Locate the drain bolt that is in the side port of the
carburetor bowl.
3 4
G019300
Figure 26
3. Insulator
4. Spark-plug gap 0.76 mm
(0.030 inch)
1. Bowl-retaining screw
2. Align the equipment that you will use to collect the fuel
beneath the drain screw.
3. Remove the drain screw from the carburetor and allow
the fuel to drain from the fuel tank and the carburetor.
Note: Do not remove the bowl-retaining screw from
carburetor.
1. Side port of the carburetor
bowl
4. Install the drain bolt into the side port of the carburetor.
21
Figure 27
2. Drain bolt
Figure 28
2. Drain bolt